CalcHub
Free Shopping CalculatorAs of 2026
Select calculation method
Cost (Purchase Price)
원
Target margin30%
%
1%25%50%90%
Margin = (Selling Price – Cost) ÷ Selling Price × 100. Please include platform fees in the cost.
Calculation result
After entering the cost and margin,
Please press Calculate.
Fair selling price
—
—
Cost (Purchase Price)—
profit—
Margin rate—
Cost ratio—
Selling price—
advertisement
What is a price calculator?
If you enter the cost and target margin, it calculates the appropriate selling price. Conversely, you can also check the current margin by entering the cost and selling price.
Margin vs. Cost
Margin (%) = (Selling Price – Cost) ÷ Selling Price × 100
Cost Ratio (%) = Cost ÷ Selling Price × 100
Fair Selling Price = Cost ÷ (1 – Margin ÷ 100)
Cost Ratio (%) = Cost ÷ Selling Price × 100
Fair Selling Price = Cost ÷ (1 – Margin ÷ 100)
If the margin is 30%, then 30% of the selling price is the profit. When the cost is 50,000 won, to achieve a margin of 30%, the selling price = 50,000 ÷ 0.7 = 71,429 won.
Frequently Asked Questions
What is the difference between margin and profit margin?
The margin rate is the profit ratio relative to the selling price, and the profit margin is the profit ratio relative to the cost (markup). When selling for 20,000 won with a cost of 10,000 won, the margin rate is 50% and the profit margin (markup) is 100%.
How are platform fees reflected?
Include platform fees in the cost price, or calculate the margin based on the settlement amount excluding fees from the selling price. Using the margin calculator automatically reflects platform-specific fees.